Just to drive home the point that 4.5" is really a great option no matter what your lift and tire size is, here's a 4" lift on 32x11.5 (5.25" backspaced wheels) with 4.5" MCE.
Here's the same rig but with a 1.5" lift and 31s. I ended up selling the rig like this without ever installing the rears, and sold the rears to a forum member.